Asus Computer Monitor LS221 User Manual
LS221 Series  
LCD Monitor  
User Guide  
Contents  
Contents ...................................................................................................... iii  
Notices......................................................................................................... iv  
Safety information ....................................................................................... v  
Care & Cleaning ......................................................................................... vi  
Chapter 1:  
Product introduction  
1.1  
1.2  
1.3  
Welcome! .................................................................................... 1-1  
Package contents......................................................................... 1-1  
Monitor introduction.................................................................... 1-2  
1.3.1  
1.3.2  
Front view ....................................................................... 1-2  
Back view........................................................................ 1-3  
Chapter 2:  
Setup  
2.1  
2.2  
2.3  
2.4  
2.5  
Unfolding the monitor.................................................................. 2-1  
Connecting the cables................................................................. 2-1  
Turning the monitor on................................................................ 2-1  
Adjusting the monitor.................................................................. 2-2  
Installing the monitor to a VESA wall mount adapter............... 2-2  
Chapter 3:  
General instruction  
3.1  
OSD (On-Screen Display) menu ................................................ 3-1  
3.1.1  
How to reconfigure.......................................................... 3-1  
3.1.2  
OSD Function Introduction.............................................. 3-1  
3.2  
3.3  
3.4  
Specifications summary ............................................................. 3-4  
Troubleshooting (FAQ) ................................................................ 3-6  
Supported operating modes ....................................................... 3-7  
iii  
 
Notices  
Federal Communications Commission Statement  
This device complies with Part 15 of the FCC Rules. Operation is subject to the  
following two conditions:  
•
•
This device may not cause harmful interference, and  
This device must accept any interference received including interference that  
may cause undesired operation.  
This equipment has been tested and found to comply with the limits for a  
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are  
designed to provide reasonable protection against harmful interference in a  
residential installation. This equipment generates, uses and can radiate radio  
frequency energy and, if not installed and used in accordance with manufacturer’s  
instructions, may cause harmful interference to radio communications. However,  
there is no guarantee that interference will not occur in a particular installation. If  
this equipment does cause harmful interference to radio or television reception,  
which can be determined by turning the equipment off and on, the user is  
encouraged to try to correct the interference by one or more of the following  
measures:  
•
•
•
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and receiver.  
Connect the equipment to an outlet on a circuit different from that to which the  
receiver is connected.  
•
Consult the dealer or an experienced radio/TV technician for help.  
The use of shielded cables for connection of the monitor to the graphics card is  
required to assure compliance with FCC regulations. Changes or modifications  
to this unit not expressly approved by the party responsible for compliance  
could void the user’s authority to operate this equipment.  
As an Energy Star® Partner, our company has determined that this product meets  
the Energy Star® guidelines for energy efficiency.  
Canadian Department of Communications Statement  
This digital apparatus does not exceed the Class B limits for radio noise emissions  
from digital apparatus set out in the Radio Interference Regulations of the  
Canadian Department of Communications.  
This class B digital apparatus complies with Canadian ICES-003.  
iv  
 
Safety information  
•
Before setting up the monitor, carefully read all the documentation that came  
with the package.  
•
To prevent fire or shock hazard, never expose the monitor to rain or moisture.  
•
Never try to open the monitor cabinet. The dangerous high voltages inside the  
monitor may result in serious physical injury.  
•
If the power supply is broken, do not try to fix it by yourself. Contact a qualified  
service technician or your retailer.  
•
Before using the product, make sure all cables are correctly connected and the  
power cables are not damaged. If you detect any damage, contact your dealer  
immediately.  
•
•
Slots and openings on the back or top of the cabinet are provided for  
ventilation. Do not block these slots. Never place this product near or over a  
radiator or heat source unless proper ventilation is provided.  
The monitor should be operated only from the type of power source indicated  
on the label. If you are not sure of the type of power supply to your home,  
consult your dealer or local power company.  
•
•
•
•
•
•
Use the appropriate power plug which complies with your local power  
standard.  
Do not overload power strips and extention cords. Overloading can result in  
fire or electric shock.  
Avoid dust, humidity, and temperature extremes. Do not place the monitor in  
any area where it may become wet. Place the monitor on a stable surface.  
Unplug the unit during a lightning storm or if it will not be used for a long period  
of time. This will protect the monitor from damage due to power surges.  
Never push objects or spill liquid of any kind into the slots on the monitor  
cabinet.  
To ensure satisfactory operation, use the monitor only with UL listed  
computers which have appropriate configured receptacles marked between  
100-240V AC.  
•
If you encounter technical problems with the monitor, contact a qualified  
service technician or your retailer.  
This symbol of the crossed out wheeled bin indicates that the product (electrical  
and electronic equipment) should not be placed in municipal waste.  
Please check local regulations for disposal of electronic products.  
v
 
Care & Cleaning  
•
Before you lift or reposition your monitor, it is better to disconnect the cables  
and power cord. Follow the correct lifting techniques when positioning the  
monitor. When lifting or carrying the monitor, grasp the edges of the monitor.  
Do not lift the display by the stand or the cord.  
•
•
Cleaning. Turn your monitor off and unplug the power cord. Clean the monitor  
surface with a lint-free, non-abrasive cloth. Stubborn stains may be removed  
with a cloth dampened with mild cleaner.  
Avoid using a cleaner containing alcohol or acetone. Use a cleaner intended  
for use with the LCD. Never spray cleaner directly on the screen, as it may drip  
inside the monitor and cause an electric shock.  
The following symptoms are normal with the monitor:  
•
The screen may flicker during the initial use due to the nature of the fluorescent  
light. Turn off the Power Switch and turn it on again to make sure that the  
flicker disappears.  
•
You may find slightly uneven brightness on the screen depending on the  
desktop pattern you use.  
•
When the same image is displayed for hours, an afterimage of the previous  
screen may remain after switching the image. The screen will recover slowly or  
you can turn off the Power Switch for hours.  
•
When the screen becomes black or flashes, or cannot work anymore, contact  
your dealer or service center to fix it. Do not repair the screen by yourself!  
Conventions used in this guide  
To make sure that you perform certain tasks properly, take note of the following  
symbols used throughout this manual.  
DANGER/WARNING: Information to prevent injury to yourself  
when trying to complete a task.  
CAUTION: Information to prevent damage to the components  
when trying to complete a task.  
IMPORTANT: Instructions that you MUST follow to complete a  
task.  
NOTE: Tips and additional information to help you complete a  
task.  
vi  
 
Where to find more information  
Refer to the following sources for additional information and for product and  
software updates.  
1.  
2.  
ASUS websites  
The ASUS websites worldwide provide updated information on ASUS  
hardware and software products. Refer to http://www.asus.com  
Optional documentation  
Your product package may include optional documentation that may have  
been added by your dealer. These documents are not part of the standard  
package.  
vii  
viii  
1.1  
Welcome!  
Thank you for purchasing the ASUS® LS221 Series LCD monitor!  
The latest LCD monitor from ASUS provides a crisper, broader, and brighter  
display, plus a host of features that enhance your viewing experience.  
With these features, you can enjoy the convenience and delightful visual  
experience that the LS221 Series brings you!  
1.2  
Package contents  
Check your LS221 Series LCD package for the following items:  
•
•
•
•
•
•
•
•
LCD monitor  
Quick start guide  
1 x Power cord  
1 x Power adapter  
1 x VGA cable  
1 x HDMI-DVI cable (LS221H only)  
1 x Support CD  
1 x Cleaning cloth (For some models)  
If any of the above items is damaged or missing, contact your retailer  
immediately.  
ASUS LCD Monitor LS221 Series  
1-1  
 
1.3  
Monitor introduction  
1.3.1  
Front view  
Light-in-motion  
Stand  
1
2
3
4
5
6
1.  
Button:  
•
Use this hotkey to switch between the two input sources: VGA and HDMI  
(LS221H only).  
2.  
button:  
•
Use this hotkey to switch from five video preset modes (Game Mode,  
Night View Mode, Scenery Mode, Standard Mode, Theater Mode) with  
SPLENDID™ Video Enhancement Technology.  
•
Exit the OSD menu or go back to the previous menu as the OSD menu  
is active.  
•
Automatically adjust the image to its optimized position, clock, and phase  
by long pressing this button for 2-4 seconds (for VGA mode only).  
3.  
4.  
5.  
button:  
•
Press this button to decrease the value of the function selected or move  
left/up to the previous function.  
MENU sensor:  
•
Press this button to enter/select the icon (function) highlighted while the  
OSD is activated.  
button:  
•
•
Press this button to increase the value of the function selected or move  
right/down to the next fuction.  
This is also a hotkey for Brightness adjustment.  
1-2  
Chapter 1: Product introduction  
 
6.  
Power button / power indicator  
•
Press this button to turn the monitor on/off  
The color definition of the power indicator is as the below table.  
•
Status  
Blue  
Description  
ON  
Amber  
OFF  
Standby mode  
OFF  
7.  
Light-in-motion function  
The function indicates the status of the monitor. The color definition of the  
light is as the above table. You can turn on/off this function through the OSD  
menu.  
1.3.2  
Back view  
Rear connectors  
1
2
3
Rear connectors (from left to right)  
1.  
2.  
VGA port. This 15-pin port is for PC VGA connection.  
HDMI port (LS221H only). For High-Definition Multimedia Interface (HDMI)  
signal connection.  
3.  
DC-IN port. This port connects the power connector from the bundled power  
adapter.  
ASUS LCD Monitor LS221 Series  
1-3  
 
1-4  
Chapter 1: Product introduction  
2.1  
Unfolding the monitor  
The monitor is folded in the package. To unfold the monitor, hold the back cover  
and press the Button with one hand, and carefully tilt the monitor forward with the  
other hand until the Button rebounds with a click.  
Button  
2.2  
Connecting the cables  
Connect the cables as the following instructions:  
•
To connect the power adapter: first, connect the adapter cord securely to the  
monitor’s DC-in port. Then, connect the power plug to the adapter port with the  
other end to a power outlet.  
•
To connect the VGA / HDMI cable:  
a. Plug the VGA / HDMI connector to the LCD monitor’s VGA / HDMI port.  
(HDMI: LS221H only)  
b. Connect the other end of the VGA / HDMI cable to your computer’s  
VGA / HDMI port.  
c. Tighten the two screws to secure the VGA / HDMI connector.  
2.3  
Turning the monitor on  
Gently press the power button  
buton. The power indicator  
. See page 1-2 for the location of the power  
lights up in blue to show that the monitor is ON.  
ASUS LCD Monitor LS221 Series  
2-1  
 
2.4  
Adjusting the monitor  
•
For optimal viewing, we recommend that you look at the full face of the  
monitor, then adjust the monitor to the angle that is most comfortable for you.  
•
Hold the stand to prevent the monitor from falling when you change its angle.  
•
You can adjust the monitor’s angle from -3º to 20º.  
-3º~20º  
It is normal that the monitor slightly shakes while you adjust the the viewing  
angle.  
2.5  
Installing the monitor to a VESA wall  
mount adapter  
The foldable stand of the LS221 LCD monitor is specially designed for a VESA wall  
mount adapter.  
To install the monitor to a VESA wall mount adapter:  
1.  
2.  
Have the front of the monitor face down on a table.  
Press down the button on the arm and fold the stand toward the back of the  
monitor until the button rebounds with a click.  
3.  
Fix the monitor on the VESA wall mount adapter using a screw driver to  
fasten four screws into the four screw holes on the monitor stand.  
VESA wall mount  
adapter (optional)  
Button  
Screw holes  
We recommend that you cover the table surface with soft cloth to prevent  
damage to the monitor.  
The VESA wall mount kit (100 mm x 100 mm) is purchased separately.  
2-2  
Chapter 2: Setup  
 
3.1  
OSD (On-Screen Display) menu  
3.1.1  
How to reconfigure  
1.  
2.  
Press the MENU button to activate the  
OSD menu.  
Press  
and  
to navigate through  
the functions. Highlight and activate the  
desired function by pressing the MENU  
button. If the selected function has a  
sub-menu, press  
and  
again to  
navigate through the sub-menu functions.  
Highlight and activate the desired sub-  
menu function by pressing the MENU button.  
3.  
4.  
Press  
and  
to change the settings of the selected function.  
To exit the OSD menu, press the  
adjust any other function.  
button. Repeat step 2 and step 3 to  
3.1.2  
OSD Function Introduction  
1.  
Spendid  
This function contains five sub-functions  
you can select for your preference. Each  
mode has the Reset selection, allowing  
you to maintain your setting or return to  
the preset mode.  
•
Scenery Mode: best choice  
for scenery photo display with  
SPLENDID™ Video Enhancement.  
•
•
•
•
Standard Mode: best choice for document editing with SPLENDID™  
Video Enhancement.  
Theater Mode: best choice for movie with SPLENDID™ Video  
Enhancement.  
Game Mode: best choice for game playing with SPLENDID™ Video  
Enhancement.  
Night View Mode: best choice for dark-scene game or movie with  
SPLENDID™ Video Enhancement.  
•
In the Standard Mode, the Satuation and Sharpness functions are not user-  
configurable.  
•
In the other modes, the sRGB function is not user-configurable.  
ASUS LCD Monitor LS221 Series  
3-1  
 
2.  
Image  
You can adjust brightness, contrast,  
sharpness, saturation, position (VGA  
only), ASCR, and focus (VGA only) from  
this main function.  
•
Brightness: the adjusting range is  
from 0 to 100. is a hotkey to  
activate this function.  
•
Contrast: the adjusting range is from  
0 to 100.  
•
•
•
Sharpness: the adjusting range is from 0 to 100.  
Saturation: the adjusting range is from 0 to 100.  
Position: adjusts the horizontal postition (H-Position) and the vertical  
position (V-Position) of the image. The adjusting range is from 0 to 100.  
•
•
ASCR: turns on/off the ASCR(ASUS Smart Contrast Ratio) function.  
Focus: reduces Horizonal-line noise and Vertical-line noise of the image  
by adjusting (Phase) and (Clock) separately. The adjusting range is from  
0 to 100.  
•
•
Phase adjusts the phase of the pixel clock signal. With a wrong phase  
adjustment, the screen shows horizontal disturbances.  
Clock (pixel frequency) controls the number of pixels scanned by one  
horizontal sweep. If the frequency is not correct, the screen shows vertical  
stripes and the image is not proportional.  
3.  
Color  
Select the desired image color from this  
function.  
•
Color Temp.: contains five color  
modes including Cool, Normal, Warm,  
sRGB, and User mode.  
•
Skin Tone: contains three color  
modes including Reddish, Natural,  
and Yellowish.  
In the User mode, colors of R (Red), G (Green), and B (Bluee) are user-  
configurable; the adjusting range is from 0-100.  
3-2  
Chapter 3: General Instruction  
4.  
Input Select  
In this function, you can select either VGA  
or HDMI input source. (Only for some  
models)  
HDMI  
5.  
System Setup  
Allow you to adjust the system.  
•
•
•
Light-in-motion: turns on/off this  
special function.  
Light-in-motion  
Aspect Control: adjusts the aspect  
ratio to “Full” or “4:3”.  
OSD Setup:  
* Adjusts the horizontal postition  
(H-Position)/ the vertical position (V-Position) of the OSD from 0 to 100.  
* Adjusts the OSD timeout from 10 to 120.  
* Enables or disables the DDC/CI function.  
•
Language: there are several languages for your selection, including  
English, French, German, Spanish, Italian, Dutch, Russian, Traditional  
Chinese, Simplified Chinese, and Japanese.  
•
•
Information: shows the monitor information.  
All Reset: “Yes” allows you to restore the default setting.  
ASUS LCD Monitor LS221 Series  
3-3  
3.2  
Specifications summary  
Product Series  
Display  
LS221H  
Panel Size  
22.0" Wide Screen  
Color  
Saturation(NTSC)  
72%  
True Resolution  
Pixel Pitch  
WSXGA+ 1680x1050  
0.282mm  
300cd/m2  
Brightness (Max.)  
Contrast Ratio  
(Max.)  
1000:1  
ASUS Smart C.  
R.(ASCR)  
4000:1  
Viewing Angle  
(CR>10)  
170°(H) / 160°(V)  
Display Colors  
16.7M  
Response Time  
LCD ZBD Warranty  
Protection Glass  
2ms (Gray to Gray)  
Yes  
Yes (Anti-reflection (<2%), 9H hardness)  
Video Features Trace Free  
Technology  
Yes  
SPLENDID™ Video  
Intelligence Tech.  
Yes  
SPLENDID™ Video  
Preset Mode  
5 modes  
3 modes  
Skin-Tone  
Selection  
Color Temperature  
Selection  
5 modes  
Yes  
HDCP  
Convenient  
Hotkeys  
SPLENDID™ Video  
Preset Mode Select.  
Yes (5 modes)  
Yes  
Auto. Adjustment  
Brightness  
Adjustment  
Yes  
Input Selection  
Yes  
Input/ Output PC Input  
Video Input  
D-Sub  
HDMI1.2  
Signal  
Frequency  
Analog Signal  
Frequency  
31~81KHz(H) / 56~75 Hz(V)  
Digital Signal  
Frequency  
31~81KHz(H) / 56~75 Hz(V)  
<46W  
Power  
Power ON  
Consumption  
Power Saving Mode <2W  
3-4  
Chapter 3: General Instruction  
 
Mechanical  
Design  
Chassis Colors  
Tilt  
Black  
+20° ~ -3°  
VESA Wall  
Mounting  
100 x 100mm  
Yes  
Security  
Kensington lock  
Dimension  
Phys. Dimension  
(WxHxD)  
531 x 436 x 248mm  
Box Dimension  
(WxHxD)  
589 x 535 x 210mm  
Weight  
Net Weight (Esti.)  
7 kg  
Gross Weight  
(Esti.)  
10.1kg  
Accessories  
HDMI-DVI cable, VGA cable, Power cord, CD  
user guide, Warranty card, Quick start guide,  
Cleaning cloth  
Regulation Approvals  
Energy Star®, UL/cUL, CB, CE, FCC, CCC,  
BSMI, MIC, PSE, PSB, Gost-R, C-Tick, VCCI,  
RoHS, WEEE, Windows Vista WHQL  
*Specifications are subject to change without notice.  
ASUS LCD Monitor LS221 Series  
3-5  
3.3  
Troubleshooting (FAQ)  
Problem  
Possible Solution  
Power LED is not ON  
• Press the  
button to check if the monitor  
is in the ON mode.  
• Check if the power cord is properly  
connected to the monitor and the power  
outlet.  
The power LED lights amber and there is no • Check if the monitor and the computer are  
screen image  
in the ON mode.  
• Make sure the signal cable is properly  
connected the monitor and the computer.  
• Inspect the signal cable and make sure  
none of the pins are bent.  
• Connect the computer with another  
available monitor to check if the computer  
is properly working.  
Screen image is too light or dark  
• Adjust the Contrast and Brightness settings  
via OSD.  
Screen image is not centered or sized  
• Press the  
button for two seconds to  
properly  
automatically adjust the image.  
• Adjust the H-Position or V-Position settings  
via OSD.  
Screen image bounces or a wave pattern is • Make sure the signal cable is properly  
present in the image  
connected to the monitor and the computer.  
• Move electrical devices that may cause  
electrical interference.  
Screen image has color defects (white does • Inspect the signal cable and make sure that  
not look white)  
none of the pins are bent.  
• Perform Reset via OSD.  
• Adjust the R/G/B color settings or select the  
Color Temperature via OSD.  
Screen image is blurry or fuzzy  
• Press the  
button for two seconds to  
automatically adjust the image (for VGA  
mode only).  
• Adjust the Phase and Clock settings via  
OSD.  
No sound or sound is low  
• Ensure that the audio cable is properly  
connected to the monitor and the computer  
• Adjust the volume settings of both your  
monitor and computer.  
• Ensure that the computer sound card driver  
is properly installed and activated.  
3-6  
Chapter 3: General Instruction  
 
3.4  
Supported operating modes  
Resolution  
Frequency  
Vertical  
Frequency  
Horizontal  
Frequency  
Standard  
Pixel  
DOS  
VGA  
720 x 400  
640 x 480  
640 x 480  
640 x 480  
800 x 600  
800 x 600  
800 x 600  
848 x 480  
1024 x 768  
1024 x 768  
1024 x 768  
1152 x 864  
1280 x 800  
1280 x 720  
1280 x 768  
1280 x 768  
1280 x 960  
1280 x 1024  
1280 x 1024  
1360 x 768  
1440 x 900  
1440 x 900  
70Hz  
60Hz  
72Hz  
75Hz  
56Hz  
60Hz  
75Hz  
60Hz  
60Hz  
70Hz  
75Hz  
75Hz  
60Hz  
60Hz  
60Hz  
75Hz  
60Hz  
60Hz  
75Hz  
60Hz  
60Hz  
75Hz  
31.47KHz  
31.47KHz  
37.90KHz  
37.50KHz  
35.16KHz  
37.90KHz  
46.90KHz  
31.02KHz  
48.40KHz  
56.50KHz  
60.02KHz  
67.50KHz  
49.62KHz  
44.69KHz  
47.78KHz  
60.29KHz  
60.00KHz  
64.00KHz  
80.00KHz  
47.71KHz  
55.94KHz  
70.64KHz  
28.32MHz  
25.18MHz  
31.50MHz  
31.50MHz  
36.00MHz  
40.00MHz  
49.50MHz  
33.75MHz  
65.00MHz  
75.00MHz  
78.75MHz  
108.00MHz  
83.375MHz  
74.375MHz  
79.50MHz  
102.25MHz  
108.00MHz  
108.00MHz  
135.00MHz  
85.50MHz  
106.00MHz  
136.75MHz  
SVGA  
WVGA  
XGA  
XGA+  
WXGA  
QVGA  
SXGA  
WXGA  
WXGA+  
WSXGA+  
(Primary)  
1680 x 1050  
60Hz  
65.29KHz  
146.25MHz  
* Modes not listed in the table may not be supported. For optimal resolution, we recommend that  
you choose a mode listed in the table above.  
ASUS LCD Monitor LS221 Series  
3-7  
 
3-8  
Chapter 3: General Instruction  

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